Ethanol as fuel
Ethanol is also known as ethyl alcohol, the same kind of alcohol you shake with vermouth and serve with some olives. Used as a fuel, it is often added to gasoline (notated much the same as biodiesel: E10 means 10% ethanol; E85 means 85% ethanol, and so on). Most gasoline-burning car engines on the road today will operate on E10 without modification, and most of the ethanol produced in the world today is "bio-ethanol," or ethanol derived from the starch or sugar in a wide variety of common crops, or feedstocks. Most commonly, ethanol is made by fermenting sugar with yeast (just as drinking alcohol is), distilling it to remove most or all of the water and then usually denaturing it (this step isn't required to make fuel), altering it so that more than a swig will land you in the hospital.
So don't drink it.